How to show the pointcloud of ground ?

Posted by Mosquito on
URL: http://official-rtab-map-forum.206.s1.nabble.com/How-to-show-the-pointcloud-of-ground-tp4328.html

I have a robot with a RGB-D camera, I run "$ roslaunch rtabmap_ros rtabmap.lauch " to build the rooms map.It generate rtabmap.db,It looks as follow picture.My question is :how can I get the pointcloud  with ground's pointcloud.